dev-ai-coding-metrics

dev-ai-coding-metrics is a skill for Codex from vasilyu1983/AI-Agents-public. It costs 36 tokens per session (2,574 once invoked), scanned A, original, MIT.

A framework for measuring how AI coding assistants and coding agents affect software delivery. It separates tools that suggest code from agents that complete multi-step tasks and examines speed, quality, cost, and developer experience.

In plain words
What is it for?
Designing pilots, comparing assistant and agent workflows, investigating unchanged outcomes despite high usage, and preparing scorecards or return-on-investment reports.
Why use it?
It prevents teams from judging AI adoption with a single usage number that may not reflect real engineering results.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions Claude Code; mentions Codex.

Good fit Designing pilots, comparing assistant and agent workflows, investigating unchanged outcomes despite high usage, and preparing scorecards or return-on-investment reports.

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Install with agentmods
npx agentmods add skills/vasilyu1983/ai-agents-public/dev-ai-coding-metrics
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add vasilyu1983/AI-Agents-public --skill dev-ai-coding-metrics
Clone the repo
git clone --depth 1 https://github.com/vasilyu1983/AI-Agents-public

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dev-ai-coding-metrics

README.md
[![agentmods](https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/dev-ai-coding-metrics/github.svg)](https://agentmods.dev/skills/vasilyu1983/ai-agents-public/dev-ai-coding-metrics)
Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dev-ai-coding-metrics

Your own site · 80×15
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/dev-ai-coding-metrics"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/dev-ai-coding-metrics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,574 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.02574
Opus 5 $0.00018 $0.01287
Sonnet 5 $0.00007 $0.00515
Haiku 4.5 $0.00004 $0.00257

Measured 10d ago against content hash 9990aeb15b88, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dev-ai-coding-metrics scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/extract_github_events.py, scripts/roi_calculator.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

frameworks/shared-skills/skills/dev-ai-coding-metrics/SKILL.md · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Coding Metrics

Measures coding assistants and coding agents without collapsing results into vanity metrics or one blended score.

The critical distinction is mode: assistants help inline or in chat; agents execute multi-step work and need task-level measurement. Do not measure them as if they were the same thing.

When to Use This Skill

Trigger Example
Designing a pilot or rollout scorecard "We're rolling out Copilot to 200 engineers — what do we measure?"
Diagnosing usage-up / outcomes-flat "Seat utilization is 80% but PR throughput is unchanged"
Comparing assistant vs. agent workflows "Should we instrument these separately?"
Building an ROI model or leadership report "Finance wants a renewal decision by Q3"
Designing an experiment better than vendor benchmarks "We can't trust the vendor's numbers — how do we run our own study?"

Defaults

Rule Rationale
Start from the decision, not the telemetry available Prevents instrument-what-is-easy bias
Separate assistant and agent funnels Mixing hides which workflow drives results
Pair every speed metric with quality + experience Speed alone is misleading
Aggregate at team level Individual dashboards become surveillance
Treat benchmarks as capability signals, not business KPIs Benchmark gaps do not equal production gaps

Workflow

  1. Define the decision.
  2. Pick the program mode: assistant, agent, or mixed.
  3. Build the minimum viable scorecard.
  4. Choose the study design.
  5. Produce one deliverable.

ASCII Flow

AI coding metrics request
  -> decision to support: buy, renew, improve, prove, or diagnose
  -> split mode: assistant, agent, or mixed
  -> select scorecard families: adoption, delivery, quality, economics, experience
  -> choose study design and baseline window
  -> collect team-level and task-level evidence
  -> report confidence, sample size, and confounds
  -> deliver ROI model, dashboard, experiment plan, or executive report

Read the full file on GitHub · 194 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 194 lines · 36 tokens per session scan A 9990aeb15b88

Subscribe to this mod's changes

dev-ai-coding-metrics is a skill published in the GitHub repository vasilyu1983/AI-Agents-public (87 stars, last pushed 7d ago), licensed MIT. It adds 36 tokens to every session and 2,574 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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